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Water Essays

Determining the Percent Copper and Zinc in Pennies

Mass 10 pennies, record data. Fill a 100mL graduated cylinder to 40mL or enough to fully submerge the pennies with water, record the volume in data table. Carefully place the pennies into the graduated cylinder, record the final volume of the water in data table. To find the volume of …

Pollution Caused by Urbanization and Its Solutions

There are a large number of people who move to metropolitan areas in search of better job opportunities and living conditions. This process is called urbanization which is featured by a faster increase of urban population and economic development compared with rural areas. In spite of economic growth and improvement …

Human Impacts on the Sustainability of Groundwater

Instructions: You will need to write a 1-page lab report using the scientific method to answer the following question: If current human development does not change, will groundwater sustainability be affected? When your lab report is complete – submit it in the classroom. Part I: Using the time progression of …

How does the temperature of water affect how fast sugar can dissolve?

Predict We will do three different tests, dissolving the water in boiling, warm and cool water. The sugar in the boiling water will dissolve the fastest. The sugar added to the cool water will dissolve the slowest. Reason According to the state of matter theory, the particles in a gas …

Waterfall Model

The waterfall model is the most common model of all software development life cycle models. It is very simple to understand and use. In a waterfall model, each phase must be completed before the next phase can start. At the end of each phase, a review takes place to determine …

Determination of the Hardness of Water

In a titration to determine the concentration of a metal ion, the added EDTA combines quantitatively with the cation to form the complex. The endpoint occurs when essentially all of the cation has reacted. In this experiment a solution of EDTA will be standardize by titration against a standard solution …

Science Investigatory Project College

Situation: Growing pechay is an easy way to earn money. It is a good way to augment the financial needs of a family especially these days when everything is expensive. This plant is also easy to grow and needs a short time before it is harvested. But since pechay has …

PH Lab Report

Background information/Research PH paper (litmus paper) determines how acidic or how basic a substance is. The paper changes color accordingly to color code on the pH scale. The pH scale starts from 0 to 14. The lower the number the more acidic it is. Zero is the most acidic, and …

Complexometric Determination of Water

Abstract Determining the water hardness of unknown sample #55 was determined by complexometric titration. With the use of disodium salt EDTA as the solution to chelate the metal impurities and the Eriochrome Black T indicator as the solution used to help visualize when the impurities were completely chelated, along with …

Costs and benefits of countries and TNCs exploiting energy resources

Examine the costs and benefits of countries and TNCs exploiting energy resources in technically difficult and environmentally sensitive areas (15) There are both benefits and consequences when extracting energy resources. Humans still need energy to function in day to day life as well as to keep global markets and the …

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